Anti-misoperation pressure gauge adjusting device
By using a pressure gauge adjustment device to prevent accidental operation, and by employing a rebound mechanism and a limit mechanism to prevent accidental activation of the vent valve, the problem of inaccurate values during pressure gauge adjustment is solved, and accurate and stable values are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-17
AI Technical Summary
Pressure gauges are prone to accidentally triggering the vent valve during adjustment, leading to inaccurate readings. Recalibration is required to ensure accuracy.
A pressure gauge adjustment device designed to prevent accidental operation includes a rebound mechanism and a limit mechanism. The protective cover, reset block and limit pin work together to prevent accidental activation of the vent valve.
This effectively prevents the pressure gauge from accidentally triggering the vent valve when adjusted to a specified value, ensuring the accuracy and stability of the readings and reducing the frequency of recalibration.
Smart Images

Figure CN223997771U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressure gauge adjustment devices, and in particular to a pressure gauge adjustment device that prevents misoperation. Background Technology
[0002] A pressure gauge is an instrument that uses an elastic element as its sensing element to measure and indicate pressures higher than ambient pressure. The pressure gauge works by transmitting the pressure deformation of its internal sensing element (Bourdon tube, diaphragm, bellows) to a pointer via a mechanism within the gauge's internal structure. This causes the pointer to rotate, displaying the pressure. Pressure gauges are instruments used to measure the pressure of fluids; they are widely used in industries such as industry, chemical engineering, petroleum, natural gas, pharmaceuticals, and food processing, playing a crucial role in practical applications. The structure of a pressure gauge generally includes a pressure-measuring device, a sensor, a circuit board, and a pointer or digital display screen.
[0003] When adjusting a pressure gauge, a pressure gauge calibration table is usually used for adjustment and assembly. Because the adjustment requires turning the vent valve and then calibrating according to the standard pressure gauge, the vent valve is easily accidentally activated during the reassembly process after adjustment, which can lead to inaccurate pressure gauge values and require recalibration to ensure the accuracy of the pressure gauge. To address this issue, we propose a pressure gauge adjustment device to prevent accidental operation. Utility Model Content
[0004] The purpose of this invention is to provide a pressure gauge adjustment device that prevents misoperation, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A pressure gauge adjustment device to prevent misoperation includes a workbench, a pressure pump connected to the upper surface of the workbench, a delivery pipe connected to the output end of the pressure pump, a first fixed pipe connected to the upper surface of the workbench, a standard pressure gauge connected inside the first fixed pipe, a second fixed pipe connected to the upper surface of the workbench, a pressure gauge body connected inside the second fixed pipe, a vent valve connected to the upper surface of the workbench, a spring-loaded mechanism provided on the upper surface of the workbench, and a limit mechanism provided on the upper surface of the workbench.
[0007] In a further embodiment, the rebound mechanism includes a support cylinder, a groove is provided on the right side of the support cylinder, a spring is connected inside the groove, and a reset block is slidably connected to the inner wall of the groove.
[0008] In a further embodiment, the limiting mechanism includes a limiting cylinder, a sliding groove is provided on the left side of the limiting cylinder, a slider is slidably connected to the inner wall of the sliding groove, a first limiting hole is provided on the upper surface of the slider, and two second limiting holes are provided on the upper surface of the limiting cylinder, with a limiting pin provided inside the first limiting hole and the inside of one of the second limiting holes.
[0009] In a further embodiment, the end of the spring away from the groove is connected to the outer surface of the reset block, and the bottom surface of the support cylinder is connected to the upper surface of the workbench.
[0010] In a further embodiment, a protective cover is connected to the right side of the slider, and the bottom surface of the limiting cylinder is connected to the upper surface of the worktable.
[0011] In a further embodiment, the left side of the reset block is connected to the right side of the protective cover, and the end of the delivery pipe away from the pressure pump is connected to the upper surface of the workbench.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This device works by pulling the protective cover, which causes the reset block and slider to slide on the inner walls of the groove and slide, respectively. When the reset block slides, it stretches the spring. When the protective cover covers the vent valve, it aligns the first limit hole with the second limit hole and inserts the limit pin into the first limit hole and the second limit hole, thereby limiting the protective cover and preventing the pressure gauge from accidentally triggering the vent valve when it is adjusted to the specified value, which would result in incorrect value recording. Attached Figure Description
[0014] Figure 1 A three-dimensional structural diagram of the pressure gauge adjustment device to prevent misoperation.
[0015] Figure 2 A three-dimensional structural diagram of the pressure gauge adjustment device to prevent misoperation, viewed from the front.
[0016] Figure 3 A three-dimensional structural diagram of the support cylinder of the pressure gauge regulating device to prevent misoperation.
[0017] Figure 4 A three-dimensional structural diagram of the limit cylinder of the pressure gauge regulating device to prevent misoperation.
[0018] In the diagram: 1. Workbench; 2. Pressure pump; 3. Delivery pipe; 4. First fixed pipe; 5. Standard pressure gauge; 6. Second fixed pipe; 7. Pressure gauge body; 8. Vent valve; 9. Rebound mechanism; 901. Support cylinder; 902. Groove; 903. Spring; 904. Reset block; 10. Limiting mechanism; 101. Limiting cylinder; 102. Slide groove; 103. Sliding block; 104. First limiting hole; 105. Second limiting hole; 106. Limiting pin; 11. Protective cover. Detailed Implementation
[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4In this utility model, a pressure gauge adjustment device to prevent misoperation includes a workbench 1, a pressure pump 2 connected to the upper surface of the workbench 1, a delivery pipe 3 connected to the output end of the pressure pump 2, a first fixed pipe 4 connected to the upper surface of the workbench 1, a standard pressure gauge 5 connected inside the first fixed pipe 4, a second fixed pipe 6 connected to the upper surface of the workbench 1, a pressure gauge body 7 connected inside the second fixed pipe 6, a vent valve 8 connected to the upper surface of the workbench 1, a spring mechanism 9 provided on the upper surface of the workbench 1, and a limit mechanism 10 provided on the upper surface of the workbench 1. The pressure gauge body 7 is the pressure gauge to be adjusted and is threadedly installed with the second fixed pipe 6.
[0023] The rebound mechanism 9 includes a support cylinder 901. A groove 902 is provided on the right side of the support cylinder 901. A spring 903 is connected inside the groove 902. A reset block 904 is slidably connected to the inner wall of the groove 902. The limiting mechanism 10 includes a limiting cylinder 101. A sliding groove 102 is provided on the left side of the limiting cylinder 101. A slider 103 is slidably connected to the inner wall of the sliding groove 102. A first limiting hole 104 is provided on the upper surface of the slider 103. Two second limiting holes 105 are provided on the upper surface of the limiting cylinder 101. A limiting pin 106 is provided inside the first limiting hole 104 and the interior of one of the second limiting holes 105.
[0024] The end of spring 903 away from the groove 902 is connected to the outer surface of reset block 904. The bottom surface of support cylinder 901 is connected to the upper surface of workbench 1. The right side of slider 103 is connected to protective cover 11. The bottom surface of limit cylinder 101 is connected to the upper surface of workbench 1. The left side of reset block 904 is connected to the right side of protective cover 11. The end of delivery pipe 3 away from pressure pump 2 is connected to the upper surface of workbench 1. With the setting of spring 903, spring 903 can rebound according to its own elasticity and drive reset block 904, protective cover 11 and slider 103 to move, so that protective cover 11 can quickly remove the cover of vent valve 8, so as to adjust pressure gauge body 7.
[0025] The working principle of this utility model is as follows:
[0026] When it is necessary to protect the vent valve 8, first pull the protective cover 11. When the protective cover 11 moves, it will cause the reset block 904 and the slider 103 to slide on the inner wall of the groove 902 and the slide 102 respectively. When the reset block 904 slides, it will stretch the spring 903. After the protective cover 11 covers the vent valve 8, align the first limiting hole 104 with the second limiting hole 105, and insert the limiting pin 106 into the inside of the first limiting hole 104 and the second limiting hole 105, so that the protective cover 11 is limited.
[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A misoperation preventing pressure gauge adjusting device characterized by comprising: The utility model provides a pressure pump, it includes workbench (1), the upper surface of workbench (1) is connected with pressure pump (2), the output of pressure pump (2) is connected with delivery pipe (3), the upper surface of workbench (1) is connected with first fixed pipe (4), the inside of first fixed pipe (4) is connected with standard pressure gauge (5), the upper surface of workbench (1) is connected with second fixed pipe (6), the inside of second fixed pipe (6) is connected with pressure gauge body (7), the upper surface of workbench (1) is connected with air release valve (8), the upper surface of workbench (1) is provided with rebound mechanism (9), the upper surface of workbench (1) is provided with limiting mechanism (10).
2. The misoperation preventing pressure gauge adjusting device according to claim 1, characterized by: The rebound mechanism (9) includes a support cylinder (901), a groove (902) is formed in the right side of the support cylinder (901), a spring (903) is connected inside the groove (902), and a reset block (904) is slidably connected to the inner wall of the groove (902).
3. The misoperation preventing pressure gauge adjusting device according to claim 1, characterized in that: The limiting mechanism (10) includes a limiting cylinder (101), a sliding groove (102) is formed in the left side of the limiting cylinder (101), a sliding block (103) is slidably connected to the inner wall of the sliding groove (102), a first limiting hole (104) is formed in the upper surface of the sliding block (103), two second limiting holes (105) are formed in the upper surface of the limiting cylinder (101), and a limiting pin (106) is arranged inside the first limiting hole (104) and one of the second limiting holes (105).
4. The misoperation preventing pressure gauge adjusting device according to claim 2, characterized by: One end of the spring (903) away from the groove (902) is connected to the outer surface of the reset block (904), and the bottom surface of the support cylinder (901) is connected to the upper surface of the workbench (1).
5. The misoperation preventing pressure gauge adjusting device according to claim 3, characterized in that: The right side of the sliding block (103) is connected with a protective cover (11), and the bottom surface of the limiting cylinder (101) is connected to the upper surface of the workbench (1).
6. The misoperation preventing pressure gauge adjusting device according to claim 2, characterized by: The left side of the reset block (904) is connected to the right side of the protective cover (11), and one end of the delivery pipe (3) away from the pressure pump (2) is connected to the upper surface of the workbench (1). The left side of the reset block (904) is connected to the right side of the protective cover (11), and one end of the delivery pipe (3) away from the pressure pump (2) is connected to the upper surface of the workbench (1).